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                                <h2 id="&#x62BD;&#x8C61;&#x6570;&#x636E;&#x7C7B;&#x578B;&#x6808;&#x7684;&#x5B9A;&#x4E49;&#x548C;&#x5B9E;&#x73B0;">&#x62BD;&#x8C61;&#x6570;&#x636E;&#x7C7B;&#x578B;&#x6808;&#x7684;&#x5B9A;&#x4E49;&#x548C;&#x5B9E;&#x73B0;</h2>
<p><strong>&#x6808;</strong>&#x662F;&#x9650;&#x5B9A;&#x4EC5;&#x5728;&#x8868;&#x5C3E;&#x8FDB;&#x884C;&#x63D2;&#x5165;&#x6216;&#x5220;&#x9664;&#x64CD;&#x4F5C;&#x7684;&#x7EBF;&#x6027;&#x8868;&#x3002;&#x56E0;&#x6B64;&#xFF0C;&#x8868;&#x5C3E;&#x7AEF;&#x79F0;&#x4E3A;<strong>&#x6808;&#x9876;</strong>&#xFF0C;&#x8868;&#x5934;&#x7AEF;&#x79F0;&#x4E3A;<strong>&#x6808;&#x5E95;</strong>&#xFF0C;&#x4E0D;&#x542B;&#x5143;&#x7D20;&#x7684;&#x7A7A;&#x8868;&#x79F0;&#x4E3A;<strong>&#x7A7A;&#x6808;</strong>&#x3002;</p>
<p>&#x5047;&#x8BBE;&#x5B58;&#x5728;&#x6808; </p>
<p>$$
S=(a_1,a_2,&#xB7;&#xB7;&#xB7;,a_n)</p>
<p>$$
&#x5219;&#x79F0; $a_1$ &#x4E3A;&#x6808;&#x5E95;&#x5143;&#x7D20;&#xFF0C;$a_n$&#x4E3A;&#x6808;&#x9876;&#x5143;&#x7D20;&#x3002;&#x6808;&#x4E2D;&#x5143;&#x7D20;&#x662F;&#x6309; $$a_1,a_2,&#xB7;&#xB7;&#xB7;,a_n$$ &#x7684;&#x6B21;&#x5E8F;&#x4F9D;&#x6B21;&#x8FDB;&#x6808;&#xFF0C;&#x9000;&#x6808;&#x7684;&#x7B2C;&#x4E00;&#x4E2A;&#x5143;&#x7D20;&#x5E94;&#x4E3A;&#x6808;&#x9876;&#x5143;&#x7D20;&#x3002;&#x6808;&#x7684;&#x4FEE;&#x6539;&#x662F;&#x6309;&#x540E;&#x8FDB;&#x5148;&#x51FA;&#x7684;&#x539F;&#x5219;&#x8FDB;&#x884C;&#x7684;&#xFF0C;&#x56E0;&#x6B64;&#xFF0C;&#x6808;&#x53C8;&#x79F0;&#x4E3A;<strong>&#x540E;&#x8FDB;&#x5148;&#x51FA;</strong>&#x7684;&#x7EBF;&#x6027;&#x8868;&#xFF08;&#x7B80;&#x79F0; <code>LIFO</code> &#x7ED3;&#x6784;&#xFF09;&#x3002;</p>
<blockquote>
<p>&#x63D2;&#x5165;&#x5143;&#x7D20;&#x7684;&#x64CD;&#x4F5C;&#x4E3A;<strong>&#x5165;&#x6808;</strong>&#xFF0C;&#x5220;&#x9664;&#x6808;&#x9876;&#x5143;&#x7D20;&#x7684;&#x64CD;&#x4F5C;&#x4E3A;<strong>&#x51FA;&#x6808;</strong>&#x3002;</p>
</blockquote>
<p>&#x548C;&#x7EBF;&#x6027;&#x8868;&#x7C7B;&#x4F3C;&#xFF0C;&#x6808;&#x4E5F;&#x6709;&#x4E24;&#x79CD;&#x5B58;&#x50A8;&#x8868;&#x793A;&#x65B9;&#x5F0F;&#xFF1A;</p>
<ul>
<li>&#x6808;&#x7684;&#x987A;&#x5E8F;&#x5B58;&#x50A8;&#x7ED3;&#x6784;</li>
<li>&#x6808;&#x7684;&#x94FE;&#x5F0F;&#x5B58;&#x50A8;&#x7ED3;&#x6784;</li>
</ul>
<p>&#x6808;&#x7684;&#x94FE;&#x5F0F;&#x5B58;&#x50A8;&#x7ED3;&#x6784;&#x5373;&#x5355;&#x94FE;&#x8868;&#x5728;&#x8868;&#x5C3E;&#x63D2;&#x5165;&#x548C;&#x5220;&#x9664;&#x5143;&#x7D20;&#xFF0C;&#x64CD;&#x4F5C;&#x7B80;&#x5355;&#xFF0C;&#x4E0D;&#x518D;&#x8BA8;&#x8BBA;&#x3002;&#x4E0B;&#x9762;&#x4E3B;&#x8981;&#x4ECB;&#x7ECD;&#x6808;&#x7684;&#x987A;&#x5E8F;&#x5B58;&#x50A8;&#x7ED3;&#x6784;&#x3002;</p>
<h3 id="&#x987A;&#x5E8F;&#x6808;&#x7684;&#x8868;&#x793A;&#x548C;&#x5B9E;&#x73B0;">&#x987A;&#x5E8F;&#x6808;&#x7684;&#x8868;&#x793A;&#x548C;&#x5B9E;&#x73B0;</h3>
<p>&#x987A;&#x5E8F;&#x6808;&#x5C31;&#x662F;&#x6808;&#x7684;&#x987A;&#x5E8F;&#x5B58;&#x50A8;&#x7ED3;&#x6784;&#xFF0C;&#x5229;&#x7528;&#x4E00;&#x7EC4;&#x5730;&#x5740;&#x8FDE;&#x7EED;&#x7684;&#x5B58;&#x50A8;&#x5355;&#x5143;&#x4E00;&#x6B21;&#x5B58;&#x653E;&#x81EA;&#x6808;&#x5E95;&#x5230;&#x6808;&#x9876;&#x7684;&#x6570;&#x636E;&#x5143;&#x7D20;&#xFF0C;&#x540C;&#x65F6;&#x9644;&#x8BBE;&#x6307;&#x9488; <code>top</code> &#x6307;&#x793A;&#x6808;&#x9876;&#x5143;&#x7D20;&#x5728;&#x987A;&#x5E8F;&#x6808;&#x4E2D;&#x7684;&#x4F4D;&#x7F6E;&#x3002;&#x901A;&#x5E38;&#x4EE5; $$top=-1$$ &#x8868;&#x793A;<strong>&#x7A7A;&#x6808;</strong>&#xFF0C;<strong>StackSize</strong> &#x6307;&#x793A;&#x6808;&#x7684;&#x53EF;&#x4F7F;&#x7528;&#x7684;<strong>&#x6700;&#x5927;&#x5BB9;&#x91CF;</strong>&#x3002;</p>
<pre><code class="lang-C"><span class="hljs-keyword">typedef</span> <span class="hljs-keyword">struct</span>
{
    ElemType data[StackSize];
    <span class="hljs-keyword">int</span> top;
}Stack;
</code></pre>
<p>&#x79F0; <code>top</code> &#x4E3A;&#x6808;&#x9876;&#x6307;&#x9488;&#xFF0C;&#x5176;&#x521D;&#x503C;&#x6307;&#x5411;&#x6808;&#x5E95;&#xFF0C;&#x5373; $$top=-1$$ &#x4F5C;&#x4E3A;&#x6808;&#x7A7A;&#x7684;&#x6807;&#x8BB0;&#xFF0C;&#x6BCF;&#x5F53;&#x63D2;&#x5165;&#x65B0;&#x7684;&#x6808;&#x9876;&#x5143;&#x7D20;&#x65F6;&#xFF0C;&#x6307;&#x9488; <code>top</code> &#x589E; 1&#xFF1B;&#x5220;&#x9664;&#x6808;&#x9876;&#x5143;&#x7D20;&#x65F6;&#xFF0C;&#x6307;&#x9488; <code>top</code> &#x51CF; 1&#x3002;</p>
<pre><code class="lang-C"><span class="hljs-comment">/**
 * &#x521D;&#x59CB;&#x5316;&#x987A;&#x5E8F;&#x6808;
 */</span>
<span class="hljs-function"><span class="hljs-keyword">void</span> <span class="hljs-title">initStack</span><span class="hljs-params">(Stack &amp;S)</span>
</span>{
    S.top = <span class="hljs-number">-1</span>; <span class="hljs-comment">// &#x521D;&#x59CB;&#x5316;&#x7F6E;&#x6808;&#x9876;&#x6307;&#x9488; top = -1</span>
}

<span class="hljs-comment">/**
 * &#x5165;&#x6808;&#x64CD;&#x4F5C;
 */</span>
<span class="hljs-function"><span class="hljs-keyword">void</span> <span class="hljs-title">push</span><span class="hljs-params">(Stack &amp;S, ElemType e)</span>
</span>{
    <span class="hljs-keyword">if</span> (S.top + <span class="hljs-number">1</span> &gt;= StackSize) <span class="hljs-comment">// &#x6808;&#x6EE1;</span>
    {
        <span class="hljs-built_in">printf</span>(<span class="hljs-string">&quot;ERROR\n&quot;</span>);
        <span class="hljs-keyword">return</span>;
    }
    S.data[++S.top] = e;
}

<span class="hljs-comment">/**
 * &#x51FA;&#x6808;&#x64CD;&#x4F5C;
 */</span>
<span class="hljs-function">ElemType <span class="hljs-title">pop</span><span class="hljs-params">(Stack &amp;S)</span>
</span>{
    <span class="hljs-keyword">if</span> (S.top == <span class="hljs-number">-1</span>) <span class="hljs-comment">// &#x7A7A;&#x6808;</span>
    {
        <span class="hljs-built_in">printf</span>(<span class="hljs-string">&quot;ERROR\n&quot;</span>);
        <span class="hljs-keyword">return</span> <span class="hljs-number">-1</span>;
    }
    <span class="hljs-keyword">return</span> S.data[S.top--];
}
</code></pre>
<h3 id="&#x5171;&#x4EAB;&#x6808;">&#x5171;&#x4EAB;&#x6808;</h3>
<p>&#x4E24;&#x6808;&#x5171;&#x4EAB;&#x7A7A;&#x95F4;&#xFF0C;&#x6307;&#x7684;&#x662F;&#x4F7F;&#x7528;&#x4E00;&#x4E2A;&#x6570;&#x7EC4;&#x6765;&#x5B58;&#x50A8;&#x4E24;&#x4E2A;&#x6808;&#xFF0C;&#x8BA9;&#x4E00;&#x4E2A;&#x6808;&#x7684;&#x6808;&#x5E95;&#x4E3A;&#x8BE5;&#x6570;&#x7EC4;&#x7684;&#x59CB;&#x7AEF;&#xFF0C;&#x53E6;&#x4E00;&#x4E2A;&#x6808;&#x7684;&#x6808;&#x5E95;&#x4E3A;&#x8BE5;&#x6570;&#x7EC4;&#x7684;&#x672B;&#x7AEF;&#xFF0C;&#x4E24;&#x4E2A;&#x6808;&#x4ECE;&#x5404;&#x81EA;&#x7684;&#x6808;&#x5E95;&#x5411;&#x4E2D;&#x95F4;&#x5EF6;&#x4F38;&#x3002;</p>
<p>&#x5047;&#x8BBE;&#x6570;&#x7EC4; A &#x7684;&#x5927;&#x5C0F;&#x4E3A; s&#xFF0C;&#x6808; 1 &#x7684;&#x6808;&#x5E95;&#x56FA;&#x5B9A;&#x5728;&#x4E0B;&#x6807;&#x4E3A; 0 &#x7684;&#x4E00;&#x7AEF;&#xFF0C;&#x6808; 2 &#x7684;&#x6808;&#x5E95;&#x56FA;&#x5B9A;&#x5728;&#x6570;&#x7EC4; A &#x4E0B;&#x6807;&#x4E3A; <code>s-1</code> &#x7684;&#x4E00;&#x7AEF;&#xFF0C;&#x800C; <code>top1</code> &#x548C; <code>top2</code> &#x5206;&#x522B;&#x4E3A;&#x6808; 1 &#x548C;&#x6808; 2 &#x7684;&#x6808;&#x9876;&#x6307;&#x9488;&#x3002;&#x4E24;&#x4E2A;&#x6808;&#x7684;&#x5927;&#x5C0F;&#x4E4B;&#x548C;&#x4E3A;&#x6574;&#x4E2A;&#x6570;&#x7EC4;&#x7684;&#x7A7A;&#x95F4;&#x3002;</p>
<p>&#x6808; 1 &#x4E3A;&#x7A7A;&#x7684;&#x6761;&#x4EF6;&#x662F; <code>top1 = 0</code>&#xFF0C;&#x6808; 2 &#x4E3A;&#x7A7A;&#x7684;&#x6761;&#x4EF6;&#x662F; <code>top2 = s - 1</code>&#xFF0C;&#x800C;&#x4E24;&#x4E2A;&#x6808;&#x6EE1;&#x7684;&#x6761;&#x4EF6;&#x5219;&#x4E3A; <code>top2 = top1 + 1</code>&#x3002;</p>
<p>&#x5171;&#x4EAB;&#x6808;&#x80FD;&#x591F;&#x66F4;&#x52A0;&#x6709;&#x6548;&#x5730;&#x5229;&#x7528;&#x5B58;&#x50A8;&#x7A7A;&#x95F4;&#xFF0C;&#x800C;&#x4E14;&#x4E24;&#x4E2A;&#x6808;&#x53EF;&#x4EE5;&#x76F8;&#x4E92;&#x8C03;&#x8282;&#xFF0C;&#x53EA;&#x6709;&#x5F53; <code>top2 = top1 + 1</code> &#x65F6;&#xFF0C;&#x5143;&#x7D20;&#x5360;&#x6EE1;&#x4E86;&#x6570;&#x7EC4;&#x7684;&#x5168;&#x90E8;&#x7A7A;&#x95F4;&#xFF0C;&#x6808;&#x624D;&#x53D1;&#x751F;&#x4E0A;&#x6EA2;&#x3002;&#x56E0;&#x800C;&#xFF0C;&#x5171;&#x4EAB;&#x6808;&#x964D;&#x4F4E;&#x4E86;&#x4E0A;&#x6EA2;&#x53D1;&#x751F;&#x7684;&#x6982;&#x7387;&#x3002;&#x6808;&#x7684;&#x5B58;&#x53D6;&#x90FD;&#x662F; O(1) &#x7684;&#x65F6;&#x95F4;&#x590D;&#x6742;&#x5EA6;&#xFF0C;&#x5E76;&#x6CA1;&#x6709;&#x51CF;&#x5C11;&#x5B58;&#x53D6;&#x65F6;&#x95F4;&#x3002;</p>
<h3 id="&#x9012;&#x5F52;&#x4E0E;&#x6808;">&#x9012;&#x5F52;&#x4E0E;&#x6808;</h3>
<p>&#x9012;&#x5F52;&#x7B97;&#x6CD5;&#x662F;&#x4E00;&#x79CD;&#x5206;&#x800C;&#x6CBB;&#x4E4B;&#x7684;&#x3001;&#x628A;&#x590D;&#x6742;&#x95EE;&#x9898;&#x5206;&#x89E3;&#x4E3A;&#x7B80;&#x5355;&#x95EE;&#x9898;&#x7684;&#x6C42;&#x89E3;&#x65B9;&#x6CD5;&#x3002;&#x5BF9;&#x6C42;&#x89E3;&#x67D0;&#x4E9B;&#x590D;&#x6742;&#x95EE;&#x9898;&#xFF0C;&#x9012;&#x5F52;&#x7B97;&#x6CD5;&#x5206;&#x6790;&#x95EE;&#x9898;&#x7684;&#x65B9;&#x6CD5;&#x662F;&#x5341;&#x5206;&#x6709;&#x6548;&#x7684;&#x3002;&#x4F46;&#x662F;&#xFF0C;&#x9012;&#x5F52;&#x7B97;&#x6CD5;&#x7684;&#x65F6;&#x95F4;/&#x7A7A;&#x95F4;&#x6548;&#x7387;&#x901A;&#x5E38;&#x6BD4;&#x8F83;&#x5DEE;&#x3002;</p>
<p>&#x6C42;&#x89E3;&#x67D0;&#x4E9B;&#x95EE;&#x9898;&#x65F6;&#xFF0C;&#x6211;&#x4EEC;&#x5E0C;&#x671B;&#x7528;&#x9012;&#x5F52;&#x7B97;&#x6CD5;&#x5206;&#x6790;&#x95EE;&#x9898;&#xFF0C;&#x7528;&#x975E;&#x9012;&#x5F52;&#x7B97;&#x6CD5;&#x5177;&#x4F53;&#x6C42;&#x89E3;&#x95EE;&#x9898;&#xFF0C;&#x8FD9;&#x5C31;&#x9700;&#x8981;&#x628A;&#x9012;&#x5F52;&#x7B97;&#x6CD5;&#x8F6C;&#x6362;&#x4E3A;&#x975E;&#x9012;&#x5F52;&#x7B97;&#x6CD5;&#x3002;</p>
<p>&#x628A;&#x9012;&#x5F52;&#x7B97;&#x6CD5;&#x8F6C;&#x5316;&#x4E3A;&#x975E;&#x9012;&#x5F52;&#x7B97;&#x6CD5;&#x6709;&#x5982;&#x4E0B;&#x4E09;&#x79CD;&#x57FA;&#x672C;&#x65B9;&#x6CD5;&#xFF1A;</p>
<ol>
<li><p>&#x901A;&#x8FC7;&#x5206;&#x6790;&#xFF0C;&#x8DF3;&#x8FC7;&#x5206;&#x89E3;&#x8FC7;&#x7A0B;&#xFF0C;&#x76F4;&#x63A5;&#x7528;&#x5FAA;&#x73AF;&#x7ED3;&#x6784;&#x7684;&#x7B97;&#x6CD5;&#x5B9E;&#x73B0;&#x6C42;&#x503C;&#x8FC7;&#x7A0B;&#x3002;</p>
</li>
<li><p>&#x7B97;&#x6CD5;&#x81EA;&#x5DF1;&#x7528;&#x6808;&#x6A21;&#x62DF;&#x7CFB;&#x7EDF;&#x7684;&#x8FD0;&#x884C;&#x65F6;&#x6808;&#xFF0C;&#x901A;&#x8FC7;&#x5206;&#x6790;&#x53EA;&#x4FDD;&#x5B58;&#x5FC5;&#x987B;&#x4FDD;&#x5B58;&#x7684;&#x4FE1;&#x606F;&#xFF0C;&#x4ECE;&#x800C;&#x7528;&#x975E;&#x9012;&#x5F52;&#x7B97;&#x6CD5;&#x66FF;&#x4EE3;&#x9012;&#x5F52;&#x7B97;&#x6CD5;&#x3002;</p>
</li>
<li><p>&#x5229;&#x7528;&#x6808;&#x4FDD;&#x5B58;&#x53C2;&#x6570;&#xFF0C;&#x7531;&#x4E8E;&#x6808;&#x7684;&#x540E;&#x8FDB;&#x5148;&#x51FA;&#x7279;&#x6027;&#x543B;&#x5408;&#x9012;&#x5F52;&#x7B97;&#x6CD5;&#x7684;&#x6267;&#x884C;&#x8FC7;&#x7A0B;&#xFF0C;&#x56E0;&#x800C;&#x53EF;&#x4EE5;&#x7528;
&#x975E;&#x9012;&#x5F52;&#x7B97;&#x6CD5;&#x66FF;&#x4EE3;&#x9012;&#x5F52;&#x7B97;&#x6CD5;&#x3002;</p>
</li>
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